20162595940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1\times {\mathrm{1303}}^1$

素因数の和:2321

約数の個数: 96

約数和(自身を含む): 45689656320

約数和(自身を除く): 25527060380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 947, 1303, 1634, 1894, 2606, 3268, 3788, 4085, 4735, 5212, 6515, 8170, 9470, 13030, 16340, 17993, 18940, 24757, 26060, 35986, 40721, 49514, 56029, 71972, 81442, 89965, 99028, 112058, 123785, 162884, 179930, 203605, 224116, 247570, 280145, 359860, 407210, 495140, 560290, 773699, 814420, 1064551, 1120580, 1233941, 1547398, 2129102, 2467882, 3094796, 3868495, 4258204, 4935764, 5322755, 6169705, 7736990, 10645510, 12339410, 15473980, 21291020, 23444879, 24678820, 46889758, 53059463, 93779516, 106118926, 117224395, 212237852, 234448790, 265297315, 468897580, 530594630, 1008129797, 1061189260, 2016259594, 4032519188, 5040648985, 10081297970, 20162595940]

約数ペア:

[(1, 20162595940), (2, 10081297970), (4, 5040648985), (5, 4032519188), (10, 2016259594), (19, 1061189260), (20, 1008129797), (38, 530594630), (43, 468897580), (76, 265297315), (86, 234448790), (95, 212237852), (172, 117224395), (190, 106118926), (215, 93779516), (380, 53059463), (430, 46889758), (817, 24678820), (860, 23444879), (947, 21291020), (1303, 15473980), (1634, 12339410), (1894, 10645510), (2606, 7736990), (3268, 6169705), (3788, 5322755), (4085, 4935764), (4735, 4258204), (5212, 3868495), (6515, 3094796), (8170, 2467882), (9470, 2129102), (13030, 1547398), (16340, 1233941), (17993, 1120580), (18940, 1064551), (24757, 814420), (26060, 773699), (35986, 560290), (40721, 495140), (49514, 407210), (56029, 359860), (71972, 280145), (81442, 247570), (89965, 224116), (99028, 203605), (112058, 179930), (123785, 162884)]